1 Dermatology Unit, San Antonio Abate Hospital, Trapani, Italy.
2 Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy.
3 Department of Dermatology, San Bortolo Hospital, Vicenza, Italy.
4 Department of Dermatology, S. Andrea Hospital, Vercelli, Italy.
5 Dermatology Unit "Daniele Innocenzi", Department of Medical-Surgical Sciences and Bio-Technologies, Sapienza University of Rome, Fiorini Hospital, Polo Pontino, Terracina, Italy.
6 Dermatology Department, ASST Spedali Civili di Brescia, University of Brescia, Brescia, Italy.